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CH475579A - Process for making direct positive photographic images - Google Patents

Process for making direct positive photographic images

Info

Publication number
CH475579A
CH475579A CH631966A CH631966A CH475579A CH 475579 A CH475579 A CH 475579A CH 631966 A CH631966 A CH 631966A CH 631966 A CH631966 A CH 631966A CH 475579 A CH475579 A CH 475579A
Authority
CH
Switzerland
Prior art keywords
photographic images
direct positive
making direct
positive photographic
making
Prior art date
Application number
CH631966A
Other languages
German (de)
Inventor
Laurens Vanreusel Gerard
Desire Van Pee Paul
Maria De Laet Jules
Original Assignee
Agfa Gevaert Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert Nv filed Critical Agfa Gevaert Nv
Publication of CH475579A publication Critical patent/CH475579A/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3022—Materials with specific emulsion characteristics, e.g. thickness of the layers, silver content, shape of AgX grains
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CH631966A 1965-04-30 1966-05-02 Process for making direct positive photographic images CH475579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18335/65A GB1150553A (en) 1965-04-30 1965-04-30 A Method of Producing Photographic Images

Publications (1)

Publication Number Publication Date
CH475579A true CH475579A (en) 1969-07-15

Family

ID=10110704

Family Applications (2)

Application Number Title Priority Date Filing Date
CH631966A CH475579A (en) 1965-04-30 1966-05-02 Process for making direct positive photographic images
CH631866A CH477710A (en) 1965-04-30 1966-05-02 Process for making direct positive photographic images

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH631866A CH477710A (en) 1965-04-30 1966-05-02 Process for making direct positive photographic images

Country Status (8)

Country Link
US (2) US3708298A (en)
AT (2) AT283908B (en)
BE (2) BE680391A (en)
CH (2) CH475579A (en)
DE (2) DE1522373C3 (en)
GB (1) GB1150553A (en)
NL (2) NL6605891A (en)
SE (1) SE347362B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249239A3 (en) * 1986-06-12 1989-06-07 Fuji Photo Film Co., Ltd. Process for the formation of direct positive images

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622318A (en) * 1970-03-20 1971-11-23 Eastman Kodak Co Photographic materials and processes
US3761276A (en) * 1971-03-10 1973-09-25 Eastman Kodak Co Photographic element containing monodispersed unfogged silver halide grains chemically sensitized internally and externally
US4081281A (en) * 1972-02-18 1978-03-28 Agfa-Gevaert N.V. Developing low fogged, direct-positive silver halide emulsion with an energetic developer free from halide ions
US4165986A (en) * 1973-07-27 1979-08-28 Polaroid Corporation Substituted-halide silver halide emulsions and products containing same
US4105450A (en) * 1973-07-27 1978-08-08 Fuji Photo Film Co., Ltd. Spectrally sensitized positive light-sensitive o-quinone diazide containing composition
DE2406515C3 (en) * 1974-02-12 1978-06-15 Du Pont De Nemours (Deutschland) Gmbh, 4000 Duesseldorf Photographic material for use in direct positives
DE2416814A1 (en) * 1974-04-06 1975-10-16 Agfa Gevaert Ag DIRECT POSITIVE PHOTOGRAPHIC MATERIAL
US4262086A (en) * 1978-06-22 1981-04-14 F. F. D., Inc. Photograph developing solution
JPS5870223A (en) * 1981-10-22 1983-04-26 Konishiroku Photo Ind Co Ltd Formation of direct positive image
JPS58120248A (en) * 1982-01-12 1983-07-18 Konishiroku Photo Ind Co Ltd Formation of direct positive image
JPS63239439A (en) * 1986-11-25 1988-10-05 Konica Corp Direct positive silver halide photographic sensitive material
JPH0690437B2 (en) 1987-12-02 1994-11-14 富士写真フイルム株式会社 Direct positive photographic material
JPH0690436B2 (en) * 1987-12-02 1994-11-14 富士写真フイルム株式会社 Direct positive photographic material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD4420A (en) *
BE388620A (en) * 1926-05-21
BE489282A (en) * 1948-05-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249239A3 (en) * 1986-06-12 1989-06-07 Fuji Photo Film Co., Ltd. Process for the formation of direct positive images

Also Published As

Publication number Publication date
GB1150553A (en) 1969-04-30
US3708298A (en) 1973-01-02
AT283908B (en) 1970-08-25
DE1522373B2 (en) 1980-12-11
SE347362B (en) 1972-07-31
BE680391A (en) 1966-11-03
DE1522374C2 (en) 1982-04-01
AT283909B (en) 1970-08-25
CH477710A (en) 1969-08-31
DE1522374A1 (en) 1969-08-14
NL6605890A (en) 1966-10-25
DE1522373C3 (en) 1981-07-23
DE1522373A1 (en) 1969-07-17
NL6605891A (en) 1966-10-25
US3733198A (en) 1973-05-15
BE680392A (en) 1966-11-03

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Legal Events

Date Code Title Description
PL Patent ceased